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  1. Home
  2. Discontinued Car Audio & Electronics
  3. Discontinued Car Amplifiers
  4. Discontinued Monoblock Amplifiers

Discontinued Monoblock Amplifiers

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Number of Channels
Each channel on an amplifier will power one speaker using a positive and negative cable. There are various types of amplifiers, each designed to power a certain number of speakers. Monoblock amplifiers, also known as single channel, are designed to power one or more subwoofers. These amplifiers often have very high power ratings. On the other hand, multi-channel amplifiers power multiple speakers, usually at lower power ratings. 2-Channel and 4-Channel amplifiers can power car speakers or low powered subwoofers. Occasionally you might see a 5 or 6-channel amplifier that can power speakers and subwoofers at the same time. The most common setup is a monoblock amp to run subwoofers and a 4-channel amp to run door speakers. Check out our Knowledge Base for more information.
Amplifier Key Features
Amplifiers can offer a diverse array of features. If you select more than one feature, then you will view amplifiers that have ALL features selected. These include speaker-level inputs that facilitate seamless integration with factory audio systems, Bluetooth connectivity suitable for ATV/UTV or Classic vehicle setups, built-in DSPs that provide enhanced control over your audio signal, and a host of other functionalities to explore.
Amplifier Class

An amplifier increases the power of the signal being fed to it by taking energy from its power supply and matching the signal but increasing its amplitude. Amplifiers use many different methods for converting these electrical signals and have been categorized into classes.

Class A/B: Greater than 50% of the input signal is amplified while the other percentage is “off”. These amplifiers have a small amount of current flowing through the output transistors all the time which almost eliminates crossover distortion. Class A/B has great sound quality but is not as efficient as class D. These amps are most commonly used to drive speakers.

Class D: Also known as switching amplifiers, class D amps have output transistors that are completely turned “on” or “off”. This means that when the transistors are on, there is almost no voltage across them but when they are off there is significant voltage but no current flowing through it which makes these amplifiers very efficient at the cost of sound quality. These amps are most commonly used to drive subwoofers.

Other Classes: You may see classes such as GH, bD, X, FD, etc. by some manufactures. These amplifiers tend to be either class A/B, D or a hybrid of the two but with improvements to their designs that can make them more efficient or offer better sound quality.
Total RMS Power Output
Total RMS power is measured by multiplying RMS power per channel by the number of channels, and is calculated at the lowest level of operating impedance.

RMS power is the amount of continuous power, measured in watts, that an amplifier produces is called RMS power. The higher the RMS figure, the louder and cleaner your music sounds.

The RMS output figure is much more accurate than the peak rating when comparing products.
Total Peak Power Output
The total peak power output is measured as the wattage per channel multiplied by the number of channels, and is calculated at the lowest level of operating impedance.

It is measured during a brief musical burst, such as a sudden drum accent. Some manufacturers display peak power ratings on the face of their products to increase the appeal.

The RMS power rating is more accurate, and we recommend using it for product comparison.
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Many brands group their products into series or lines of products to help customers know the level of quality (good, better, best for example). You can filter by series and the brand using our guided browsing.
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Minimum Impedance Unbridged
The lowest impedance the amplifier will handle when it is not bridged.
Minimum Impedance Bridged
The lowest impedance the amplifier will handle when it is bridged.
Remote bass/level controller
If the amp comes with a bass/gain remote you will be able to control the level of your bass from your dashboard. Typically bass remotes also include a 16-20 ft. wire for installation.
Sonic Certified Amplifier
Sonic Certified amplifiers have been tested by the experts at Sonic Electronix to meet or exceed the wattage ratings provided by the manufacturer. If this is marked as Yes, then you can trust the wattage ratings. If marked as No, then we have tested the amplifier and it did not meet the advertised wattage ratings. If marked as Not Tested, then the Sonic Electronix experts have not yet been able to test the amp.
Preamp Outputs
Many amplifiers are equipped with RCA preamp outputs which pass the original music signal from the source to additional amplifiers. This is known as daisy chaining because the source connects to the first amp, and the first amp connects to the second amp, etc. The advantage to daisy chaining is you only need one 2-channel RCA cable to transfer the signal from the head-unit to the amplifier, and then one additional cable for each amp being daisy chained.
Built-in Crossover

A crossover is a type of filtering system that permits only certain frequencies to play. A Low-Pass (LP) crossover allows only frequencies below its setting to get through which is good in the case of some subwoofers. A High-Pass(HP) filter allows frequencies above its setting to pass through, this is normally used on speakers.

When a crossover is set to FULL it means no filtering is added and the full frequency spectrum is allowed through the amplifier. Filtering is important because feeding a speaker frequencies it cannot reproduce effectively creates distortion.

Amp Bluetooth Connectivity
This feature will tell you if the amplifier has the capability to connect to a Bluetooth device.
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Crunch PZX1000.1

1000W Monoblock PZX Series Class AB Amplifier

PZX1000.1 big DISCONTINUED
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Crunch PZX1000.1

1000W Monoblock PZX Series Class AB Amplifier

• 500 Watts MAX x 1 @ 4 ohm
• 1000 Watts MAX x 1 @ 2 ohm
• Wired remote bass level control included
• SEPP (Single Ended Push Pull) A/B Class Amplifier Designs
• Dual speaker terminals simplify the hookup of multiple speakers
• Variable subsonic filter: 10 - 40 Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz

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• 500 Watts MAX x 1 @ 4 ohm
• 1000 Watts MAX x 1 @ 2 ohm
• Wired remote bass level control included
• SEPP (Single Ended Push Pull) A/B Class Amplifier Designs
• Dual speaker terminals simplify the hookup of multiple speakers
• Variable subsonic filter: 10 - 40 Hz
• Variable Bass Boost: 0 to +12 dB bass boost at 45 Hz

Renegade REN850S

850W, 1 Channel Monoblock Renegade Power Amplifier

REN850S big DISCONTINUED
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Renegade REN850S

850W, 1 Channel Monoblock Renegade Power Amplifier

REN Series Monoblock Class A/B Car Amplifier • 850W Max • 450 Watts x 1 Chan. @ 2 Ohm RMS • Preamp RCA Outputs • Variable Low/Sub-Pass Filter • Dual Speaker Terminals

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REN Series Monoblock Class A/B Car Amplifier • 850W Max • 450 Watts x 1 Chan. @ 2 Ohm RMS • Preamp RCA Outputs • Variable Low/Sub-Pass Filter • Dual Speaker Terminals

MTX XTHUNDER1500.1

1500W RMS XThunder Series 1 Ohm Stable Mononlock Class D Amplifier

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MTX XTHUNDER1500.1

1500W RMS XThunder Series 1 Ohm Stable Mononlock Class D Amplifier

• RMS Power: 600W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total Peak Power: 3000W
• Variable Low Pass Filter
• Dimensions: 8.9" W x 14.2" L x 2.03" H

• RMS Power: 600W x 1 @ 4 ohm, 900W x 1 @ 2 ohm, 1500W x 1 @ 1 ohm
• Total Peak Power: 3000W
• Variable Low Pass Filter
• Dimensions: 8.9" W x 14.2" L x 2.03" H

Soundstream ST1.1000D

1000W Max (500W RMS) Stealth Series Class-D Monoblock 2 Ohm Stable Amplifier with Bass Knob Included

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Soundstream ST1.1000D

1000W Max (500W RMS) Stealth Series Class-D Monoblock 2 Ohm Stable Amplifier with Bass Knob Included

• 350 Watts RMS x 1 @ 4 ohm
• 500 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1000 Watts
• Low Pass and Subsonic Filters
• 0 - 18 dB Bass Boost
• Small Footprint Makes for Easy Installation
• Aluminum Heatsink
• 3" W x 7.75" L x 1.5" H

• 350 Watts RMS x 1 @ 4 ohm
• 500 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 1000 Watts
• Low Pass and Subsonic Filters
• 0 - 18 dB Bass Boost
• Small Footprint Makes for Easy Installation
• Aluminum Heatsink
• 3" W x 7.75" L x 1.5" H

Massive Audio N2 (ES - Special Edition)

Ultra Compact 1600W Max (800W RMS) Nano Block Class-D Monoblock 1-Ohm Stable Amplifier with Adjustable Bass Boost

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Massive Audio N2 (ES - Special Edition)

Ultra Compact 1600W Max (800W RMS) Nano Block Class-D Monoblock 1-Ohm Stable Amplifier with Adjustable Bass Boost

• RMS: 200W x 1 @ 4 ohm, 400W x 1 @ 2 ohm, 800W x 1 @ 1 ohm
• Total Peak Power: 1600W
• CEA-2006 Compliant
• Selectable Bass Boost: 0, +6, +12 dB
• Class D Circuitry
• Dimensions: 7-1/4"L x 5-1/2"W x 2-1/8"H

• RMS: 200W x 1 @ 4 ohm, 400W x 1 @ 2 ohm, 800W x 1 @ 1 ohm
• Total Peak Power: 1600W
• CEA-2006 Compliant
• Selectable Bass Boost: 0, +6, +12 dB
• Class D Circuitry
• Dimensions: 7-1/4"L x 5-1/2"W x 2-1/8"H

Crunch GPV 2000.1 (GPV2000.1)

2000W Max, Ground Pounder Series Monoblock 1-Channel Amplifier

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Crunch GPV 2000.1 (GPV2000.1)

2000W Max, Ground Pounder Series Monoblock 1-Channel Amplifier

Ground Pounder Series Amplifier • Monoblock • 500W x1 Chan @ 4 ohm • 1000W x1 Chan @ 2 ohm • 2000 Watts Max • Full Range Line Output • Soft Star Sound • Illuminated Crunch Badge • Unbalanced Input RCA Jack •

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Ground Pounder Series Amplifier • Monoblock • 500W x1 Chan @ 4 ohm • 1000W x1 Chan @ 2 ohm • 2000 Watts Max • Full Range Line Output • Soft Star Sound • Illuminated Crunch Badge • Unbalanced Input RCA Jack •

EXCLUSIVE

Hifonics Brutus BRX1200.1D

1200W RMS Class NextGen Super-D Monoblock Brutus Series Amplifier

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Hifonics Brutus BRX1200.1D

1200W RMS Class NextGen Super-D Monoblock Brutus Series Amplifier

• RMS Power: 450W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• Bass Boost: 0-10 dB at 40 Hz
• Aluminum Alloy Heatsink with Illuminated Hifonics Logo

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• RMS Power: 450W x 1 @ 4 ohm, 800W x 1 @ 2 ohm, 1200W x 1 @ 1 ohm
• Total RMS Power: 1200W
• CEA-2006 Compliant
• Bass Boost: 0-10 dB at 40 Hz
• Aluminum Alloy Heatsink with Illuminated Hifonics Logo

Boss Onyx NXD3500

3500W Max, Onyx Series Class D Monoblock Power Amplifier with Remote Level Control

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Boss Onyx NXD3500

3500W Max, Onyx Series Class D Monoblock Power Amplifier with Remote Level Control

Onyx Series Monoblock Class D Car Amplifier • 1500W x 1 Chan. @ 4 ohm • 3500W Max • MOSFET PWM Power supply • Variable gain controls • Phase Shift Selector • Black Heatsink • Variable Subsonic and low-pass filter

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Onyx Series Monoblock Class D Car Amplifier • 1500W x 1 Chan. @ 4 ohm • 3500W Max • MOSFET PWM Power supply • Variable gain controls • Phase Shift Selector • Black Heatsink • Variable Subsonic and low-pass filter

Boss R2400D Monoblock Amplifier

2400W Max (1800W RMS) Riot Series Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control Included

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Boss R2400D Monoblock Amplifier

2400W Max (1800W RMS) Riot Series Class-D Monoblock 1-Ohm Stable Amplifier with Remote Level Control Included

• 450 Watts RMS x 1 @ 4 ohm
• 900 Watts RMS x 1 @ 2 ohm
• 1800 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Wired remote bass level control included
• Preamp RCA outputs to daisy chain multiple amps
• Variable Bass Boost

• 450 Watts RMS x 1 @ 4 ohm
• 900 Watts RMS x 1 @ 2 ohm
• 1800 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 2400 Watts
• Wired remote bass level control included
• Preamp RCA outputs to daisy chain multiple amps
• Variable Bass Boost

Boss D1200M

1200W Max, Class D Monoblock Diablo Series Amplifier

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Boss D1200M

1200W Max, Class D Monoblock Diablo Series Amplifier

Diablo Series Class D Monoblock Car Amplifier • 280W x 1 chan. @ 4 ohm • 1200 watts x 1 chan. Max • Stackable operation • Preamp RCA outputs • Phase switch

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Diablo Series Class D Monoblock Car Amplifier • 280W x 1 chan. @ 4 ohm • 1200 watts x 1 chan. Max • Stackable operation • Preamp RCA outputs • Phase switch

MB Quart FX1.400

400W RMS 1-Channel Monoblock Formula Series Amplifier

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MB Quart FX1.400

400W RMS 1-Channel Monoblock Formula Series Amplifier

Formula Series Monoblock Car Amplifier • 200W at 4 Ohm • 400W at 2 Ohm • PWM MOSFET Power Supply • MB QR-2 Wired REMOTE • Variable Low Pass Filer • Variable Bass Boost • 4 Way Protection Circuitry

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Formula Series Monoblock Car Amplifier • 200W at 4 Ohm • 400W at 2 Ohm • PWM MOSFET Power Supply • MB QR-2 Wired REMOTE • Variable Low Pass Filer • Variable Bass Boost • 4 Way Protection Circuitry

Dual DA801D

800W Monoblock Digital Compact Series Class D Car Amplifier (Made in Korea)

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Dual DA801D

800W Monoblock Digital Compact Series Class D Car Amplifier (Made in Korea)

• RMS: 400W x 1 @ 2 ohm, 800W x 1 @ 1 ohm
• Total Peak Power: 1750W
• Pulse Width Modulated MOSFET Power Supply
• Variable Bass Boost With Remote Control
• 4-Way Protection Circuitry
• Dimensions: 4.7"W x 9"L x 1.6"H

1

• RMS: 400W x 1 @ 2 ohm, 800W x 1 @ 1 ohm
• Total Peak Power: 1750W
• Pulse Width Modulated MOSFET Power Supply
• Variable Bass Boost With Remote Control
• 4-Way Protection Circuitry
• Dimensions: 4.7"W x 9"L x 1.6"H

Autotek MM4020.1D (MM40201D)

4000W Max 1-ohm Stable Monoblock Amplifier w/ Bass Knob Included

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Autotek MM4020.1D (MM40201D)

4000W Max 1-ohm Stable Monoblock Amplifier w/ Bass Knob Included

• 1000 Watts Max x 1 @ 4 ohm
• 2000 Watts Max x 1 @ 2 ohm
• 4000 Watts Max x 1 @ 1 ohm
• Total Peak Power: 4000 Watts
• Low Pass and Subsonic Filters
• 0-12dB Bass Boost
• Aluminum Heatsink

4

• 1000 Watts Max x 1 @ 4 ohm
• 2000 Watts Max x 1 @ 2 ohm
• 4000 Watts Max x 1 @ 1 ohm
• Total Peak Power: 4000 Watts
• Low Pass and Subsonic Filters
• 0-12dB Bass Boost
• Aluminum Heatsink

SPL FX1-5500D

5500W Max, Class D Monoblock Amplifier

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SPL FX1-5500D

5500W Max, Class D Monoblock Amplifier

FX1 Series 1-Channel Class D Car Amplifier • 1700W x 1 chan. @ 4 ohm • 2500W x 1 chan. @ 2 ohm • 3200W x 1 chan. @ 1 ohm • 5500W x 1 chan. Max • Nickel Plated Heavy Duty Power & Speaker Terminals

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FX1 Series 1-Channel Class D Car Amplifier • 1700W x 1 chan. @ 4 ohm • 2500W x 1 chan. @ 2 ohm • 3200W x 1 chan. @ 1 ohm • 5500W x 1 chan. Max • Nickel Plated Heavy Duty Power & Speaker Terminals

Kenwood KAC-9102D

Monoblock Class D 1700 watts Amplifier

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Kenwood KAC-9102D

Monoblock Class D 1700 watts Amplifier

Class-D Monoblock Amplifier • 500W RMS x 1 @ 4 ohm • 850W RMS x 1 @ 2 ohm • Variable Low-Pass and Subsonic Filter • High and Low Level Inputs • 1 Pair RCA Outputs • 0 - 18 dB Bass Boost

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Class-D Monoblock Amplifier • 500W RMS x 1 @ 4 ohm • 850W RMS x 1 @ 2 ohm • Variable Low-Pass and Subsonic Filter • High and Low Level Inputs • 1 Pair RCA Outputs • 0 - 18 dB Bass Boost

Earthquake Sound MiNi D1000

1000 W Max (600 W RMS) MiNi Series Class-D Monoblock 1 Ohm Stable Amplifier with Bass Knob Included

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Earthquake Sound MiNi D1000

1000 W Max (600 W RMS) MiNi Series Class-D Monoblock 1 Ohm Stable Amplifier with Bass Knob Included

• 180 Watts RMS x 1 @ 4 ohm
• 360 Watts RMS x 1 @ 2 ohm
• 600 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 1000 Watts
• Low Pass Filter and Subsonic Filter
• Up to 12 dB Bass Boost
• Heavy duty aluminum alloy heat-sink

• 180 Watts RMS x 1 @ 4 ohm
• 360 Watts RMS x 1 @ 2 ohm
• 600 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 1000 Watts
• Low Pass Filter and Subsonic Filter
• Up to 12 dB Bass Boost
• Heavy duty aluminum alloy heat-sink

Orion ZO5000.1D

5,000W Peak (2500W RMS) Monoblock Class-D 1-Ohm Stable Amplifier

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Orion ZO5000.1D

5,000W Peak (2500W RMS) Monoblock Class-D 1-Ohm Stable Amplifier

• 400 Watts RMS x 1 @ 4 ohm
• 780 Watts RMS x 1 @ 2 ohm
• 1250 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 5,000 Watts
• Variable Bass Boost: 0 - +18 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 357mmW x 231.5mmL x 55.5mmH

• 400 Watts RMS x 1 @ 4 ohm
• 780 Watts RMS x 1 @ 2 ohm
• 1250 Watts RMS x 1 @ 1 ohm
• Total Peak Power: 5,000 Watts
• Variable Bass Boost: 0 - +18 dB
• Heavy duty aluminum alloy heat-sink for extreme heat dissipation
• 357mmW x 231.5mmL x 55.5mmH

Phoenix Gold SX2 1200.1 (SX212001)

SX Series 2 1200W RMS Class D Monoblock High-Current Subwoofer Amplifier

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Phoenix Gold SX2 1200.1 (SX212001)

SX Series 2 1200W RMS Class D Monoblock High-Current Subwoofer Amplifier

• 1200W RMS Monoblock Subwoofer Amplifier
• Variable phase output
• Audio Precision Quality Control Verification
• Remote bass and phase controller with Bass Shift® (RBPC)
• Switchable balanced or unbalanced inputs
• Power/Ground Wire Size: 4GA
• Tri-light LED amplifier status indicators

• 1200W RMS Monoblock Subwoofer Amplifier
• Variable phase output
• Audio Precision Quality Control Verification
• Remote bass and phase controller with Bass Shift® (RBPC)
• Switchable balanced or unbalanced inputs
• Power/Ground Wire Size: 4GA
• Tri-light LED amplifier status indicators

JL Audio JX250/1D

250W RMS at 2 Ohms(160W RMS at 4 Ohms) JX Series Class-D 1-Channel 2-Ohm Stable Amplifier

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JL Audio JX250/1D

250W RMS at 2 Ohms(160W RMS at 4 Ohms) JX Series Class-D 1-Channel 2-Ohm Stable Amplifier

• 160Watts RMS x 1 @ 4 ohm
• 250 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 250 Watts

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• 160Watts RMS x 1 @ 4 ohm
• 250 Watts RMS x 1 @ 2 ohm
• Total Peak Power: 250 Watts

Performance Teknique ICBM-CLASS-D

3000W Max, Class D Monoblock Car Subwoofer Amplifier

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Performance Teknique ICBM-CLASS-D

3000W Max, Class D Monoblock Car Subwoofer Amplifier

Performance Teknique Class D Monoblock Car Subwoofer Amplifier • Regulated PWM-Type Power Supply • Remote Bass Control • LED Power and Protect Indicators • Daisy Chain Connection Capable • Built In Cooling Fan

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Performance Teknique Class D Monoblock Car Subwoofer Amplifier • Regulated PWM-Type Power Supply • Remote Bass Control • LED Power and Protect Indicators • Daisy Chain Connection Capable • Built In Cooling Fan

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    FAQ Frequently asked questions in Discontinued Monoblock Amplifiers

    A monoblock amplifier is a single-channel amplifier designed to power a single speaker or subwoofer. Unlike multi-channel amplifiers that can power multiple speakers simultaneously, a monoblock amplifier is dedicated to driving a specific speaker, typically a subwoofer. The advantage of a monoblock amplifier lies in its specialized design, which allows it to deliver higher power output to the subwoofer without interference from other speakers. This dedicated power delivery results in enhanced bass response and cleaner, more impactful low-frequency reproduction, making monoblock amplifiers a popular choice for car audio enthusiasts seeking powerful bass performance.
    Monoblock amplifiers are specifically designed to power subwoofers and are not intended for use with other speakers in your audio system. They usually have a single output channel optimized for low-frequency signals, making them unsuitable for driving mid-range or high-frequency speakers. For other speakers like door speakers or tweeters, you should use multi-channel amplifiers or dedicated channels on an audio processor. Using a monoblock amplifier for full-range speakers can result in poor audio performance and potential damage to the speakers.
    Monoblock amplifiers are compatible with most subwoofers, but it's crucial to consider the amplifier's power output and the subwoofer's power handling capabilities. The amplifier's power rating should match or slightly exceed the subwoofer's RMS power handling to ensure optimal performance and prevent overloading the subwoofer. Additionally, check the impedance (ohms) of both the amplifier and the subwoofer to ensure they match. Most monoblock amplifiers can handle both 2-ohm and 4-ohm loads, but some can also operate at 1-ohm, providing flexibility in subwoofer wiring configurations.
    No, monoblock amplifiers are not designed for bridging, as they are already single-channel amplifiers dedicated to powering a single subwoofer. Attempting to bridge a monoblock amplifier can cause damage to the amplifier and subwoofers. If you need to power multiple subwoofers, consider using multi-channel amplifiers or multiple monoblock amplifiers, each dedicated to driving a separate subwoofer. Sonic Electronix offers a wide selection of multi-channel amplifiers that can power multiple subwoofers simultaneously, ensuring optimal performance and protection for your audio system.
    Monoblock amplifiers can generate a significant amount of heat, especially when driving powerful subwoofers at high volume levels. While they don't require special cooling or ventilation compared to other amplifier types, it's essential to provide adequate airflow around the amplifier to dissipate heat effectively. Avoid mounting the amplifier in enclosed spaces or areas with limited ventilation, as this can lead to overheating and reduced performance. In some cases, installing a cooling fan or using amplifier cooling solutions can help maintain optimal operating temperatures. If you have concerns about amplifier heat, Sonic Electronix's knowledgeable staff can recommend suitable cooling solutions for your specific setup. Monoblock amplifiers are an excellent choice for enhancing the bass performance in your car audio system, providing dedicated power delivery to your subwoofers for impactful and detailed low-frequency sound reproduction. When used correctly and matched with the right subwoofers, monoblock amplifiers can elevate your car audio experience to new depths of bass excellence.
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